Does Femara make you tired?

I have been on Femara for a little over a week. I was taking it in the morning but it made me dizzy so I changed to night (early night, about 8). About an hour after I take it I get dizzy, hot, and tired but not sleepy. I get aches and pain but I don't know if that is from the femara or from the after effects of chemo. I was having the aches and pains before I began femara. Were you also given effexor for the hot flashes?